Olympus Pen F 40mm 1.4 comments

I'm sure that is a fine lens, but 1.8 is slower not faster than 1.4. Another issue is size however. The Pen F, even though faster, is tiny, and the Pen F has a very short registration distance, making the adapter and lens very small. The total flange to front of rim length is about 45mm at inf. The Nikon mount is the longest registration of any common mount, making the adapters very long by comparison.